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PowerSmart

PowerSmart 40V 21" Cordless Lawn Mower, Up to 1/4 Acre, 2 x 40V 4.0Ah Batteries and a Charger Included, 6-Position Height Adjustment

  • Based on 228 reviews
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Availability: Only 5 left in stock, order soon!
Fulfilled by Amerisun Inc
Arrives May 14 – May 18
Order within 20 hours and 55 minutes
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Style: 21" Mower (2 x 4.0Ah)


Features

  • 2 X 40V 4.0Ah Batteries Powerd Cordless Lawn Mower: 2 batteries double runtime to handle 1/4 acre (perfect for medium yards), 1 battery covers 1/8 acre (ideal for small lawns). No downtime with quick-swap design!
  • Sturdy & Quiet 21" steel deck is more durable than plastic, delivering efficient cutting performance. The brushless motor runs quieter than gasideal for hassle-free home lawn care.
  • Quick Start & Lightweight The battery-powered mower starts instantly, is lightweight for easy maneuvering, and requires less maintenance compared to gas-powered models.
  • Multifunctional: Featuring a single lever with 6 height adjustment settings, allowing you to choose a cutting height range from 1.5" to 3.9" for an optimal cut in any condition. The 2-in-1 design lets you mulch or collect grass clippings in the rear bag.
  • Includes: 21" push lawn mower, 2 x 40V 4.0Ah battery, charger, grass collection bag, and manual. 2-year service and lifetime tech support.

Brand: PowerSmart


Power Source: Battery Powered


Material: Alloy Steel, Plastic


Color: Black & Red


Style: 21" Mower (2 x 4.0Ah)


Item Weight: 56.4 Pounds


Cutting Width: 21 Inches


Operation Mode: Manual


Product Dimensions: 22.3"D x 59.4"W x 37.2"H


Assembly Required: Yes


Brand: PowerSmart


Power Source: Battery Powered


Material: Alloy Steel, Plastic


Color: Black & Red


Style: 21" Mower (2 x 4.0Ah)


Item Weight: 56.4 Pounds


Cutting Width: 21 Inches


Operation Mode: Manual


Product Dimensions: 22.3"D x 59.4"W x 37.2"H


Assembly Required: Yes


UPC: 840432701744


Maximum Adjustable Cutting Height: 3.9 Inches


Minimum Adjustable Cutting Height: 1.5 Inches


Manufacturer: Amerisun Inc


Item Weight: 56.4 pounds


Item model number: MB2400B


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: May 14 – May 18

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Perfect Lawn Mower with Fast Delivery and Great Warranty!
Style: 21" Mower (2 x 4.0Ah)
Review Image by Amazon Customer Amazon Customer
Review Image by Amazon Customer Amazon Customer
The media could not be loaded. I’m really impressed with this 40V 21" Cordless Lawn Mower! The product arrived quickly and was well-packaged with care. Setup was super easy, and I love that it comes with 2 powerful 40V 4.0Ah batteries and a charger—ready to go right out of the box. It works perfectly for my yard (around 1/4 acre), and the 6-position height adjustment lets me get the cut just how I want it. It's quiet, efficient, and surprisingly powerful for a cordless mower. Also, the 2-year warranty gives me extra peace of mind. Overall, I’m very happy with this purchase—highly recommend it to anyone looking for a reliable, hassle-free lawn mower! ... show more
Reviewed in the United States on August 6, 2025 by Amazon Customer Amazon Customer
    • Surprising powerful mower with basic features.
Style: 21" Mower (2 x 4.0Ah)
I just used this for the first time. I bought it to replace a gas-powered mower that I was tired of tinkering with after starting problems. The mower is surprisingly powerful and in every way equal to my gas mower in plowing through twigs and branches. It's also very light. If you just want a basic cordless mower without a lot of extra features, this would do the trick. I have 1,100 sq. ft. of turf and I don't think I got close to burning through a single battery. The only downside is that there is a gap at the top of the grass catcher bag that allows grass and dust to blow back onto you. ... show more
Reviewed in the United States on January 25, 2026 by David in Az
    • Worst Machine Due to Powerpack
Style: 21" Mower (2 x 4.0Ah)
The product looks good. The power pack is definitely atrocious. The two pack combined do not last 20 minutes. They take more than 2 hours each to charge. I use it once and I must return it. Thank you Amazon for understanding.
Reviewed in the United States on January 27, 2026 by Joram Rejouis
    • Nesecita unas buenas bateria
Style: 21" Mower (2 x 4.0Ah)
La batería no es muy duradera y se esta saliendo cada momento...es muy incomodo tener que estar parado para después volver a prender
Reviewed in the United States on November 3, 2025 by Pérez Simon
    • Great Product!
Style: 21" Mower (2 x 4.0Ah)
Review Image by Nipesh Dhungel Nipesh Dhungel
Review Image by Nipesh Dhungel Nipesh Dhungel
Review Image by Nipesh Dhungel Nipesh Dhungel
The media could not be loaded. I really enjoy using this lawn mower. It's simple to put together and operate, plus its lightweight design makes it a breeze to maneuver. I feel like I got great value for my money, as it easily covers my entire yard on a single battery charge. The cutting performance is impressive, and the battery life is both reliable and long-lasting. Overall, it's a highly useful and productive tool. ... show more
Reviewed in the United States on August 3, 2025 by Nipesh Dhungel Nipesh Dhungel
    • Efficient, Quiet, and Hassle-Free!
Style: 21" Mower (2 x 4.0Ah)
The media could not be loaded. I recently purchased this lawn mower and very impressed with this.Lightweight, powerful, and quiet compared to the old one.! Cuts my 1/4-acre lawn easily without running out of battery.Love the cordless convenience, quick charging, and clean cut & 6-position height adjustment makes it easy to customize the grass length. Highly recommend! ... show more
Reviewed in the United States on August 9, 2025 by Shreejana
    • Don't buy
Style: 21" Mower (2 x 4.0Ah)
This will not last long enough to mow the smallest of yards. Too late to return it. Cheap Chinese garbage.
Reviewed in the United States on March 9, 2026 by Jay H. Fine
    • Best lawnmower
Style: 21" Mower (2 x 4.0Ah)
The media could not be loaded. This battery power cordless lawn mower is very easy to handle, it comes with charger, two battery and grass bag. I really enjoy cutting grass. It is my best investment, highly recommended.
Reviewed in the United States on August 6, 2025 by Pritam

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